Spatio-temporal evolution characteristics of scientific and technological innovation of Zanthoxylum bungeanum industry in Sichuan Province of China

doi:10.3969/j.issn.1004-1524.20250069

Acta Agriculturae Zhejiangensis ›› 2025, Vol. 37 ›› Issue (12): 2625-2641.DOI: 10.3969/j.issn.1004-1524.20250069

• Agricultural Economy and Development • Previous Articles Next Articles

Spatio-temporal evolution characteristics of scientific and technological innovation of Zanthoxylum bungeanum industry in Sichuan Province of China

CHANG Jie(), XIE Lei, LIN Zhengyu, GUO Yaohui, DU Xingduan, LIU Zongmin^*()

Agricultural Information and Rural Economy Institute, Sichuan Academy of Agricultural Sciences, Chengdu 610066, China

Received:2025-01-21 Online:2025-12-25 Published:2026-01-09

Abstract

Abstract:

Sichuan is the largest province in the production of Zanthoxylum bungeanum in China, for Sichuan Province and even the western region, the study of the evolution trend of scientific and technological innovation is very conducive to promoting the high-quality development of the Z. bungeanum industry. Based on the patent data of Zanthoxylum bungeanum from 1991 to 2022, this paper used social network analysis and exploratory spatial data analysis to analyze the spatio-temporal evolution characteristics of scientific and technological innovation in Sichuan Province. The findings are as follows: 1) Technological innovation exhibits a typical two-stage development characteristic,since 2010, the number of patents increased rapidly, and the main body of innovation changed from individual to enterprise-led. 2) The scale of industry-university-research cooperation was small, the cooperation between subjects was not close, and the network structure showed the characteristics of low density and scale-free. 3) From 2010 to 2022, the technological innovation chain showed a trend of expansion of the upstream, midstream and downstream industrial chains, however, the food industry is still dominant, and the technological innovation serving the production of pepper is still in its infancy; 4) The regions with high innovation scale have long been led by Chengdu, Ya’an, and Mianyang, while high level innovation areas have gradually changed from Aba Prefecture, Mianyang City, Guang’an City and other places to Ya’an, Meishan, Liangshan Prefecture and other places to lead; 5) The obvious areas of technology spillover are mainly concentrated in the Chengdu Plain Economic Zone, the western part of Liangshan Prefecture, some districts and counties of Zigong, Luzhou and Yibin in southern Sichuan, and some districts and counties of Nanchong, Dazhou and Guang’an in northeastern Sichuan, however, the number of high-high(H-H) regions is on a downward trend.

Key words: Zanthoxylum bungeanum, innovation network, spatio-temporal pattern, social network analysis, Sichuan Province

CLC Number:

CHANG Jie, XIE Lei, LIN Zhengyu, GUO Yaohui, DU Xingduan, LIU Zongmin. Spatio-temporal evolution characteristics of scientific and technological innovation of Zanthoxylum bungeanum industry in Sichuan Province of China[J]. Acta Agriculturae Zhejiangensis, 2025, 37(12): 2625-2641.

Figures/Tables 14

References 37

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指标 Index	网络规模 Network scale	网络关系数 Number of network relationships	平均路径长度 Average path length	平均聚类系数 Average clustering coefficient
现实网络Reality Network	150	108	2.583	0.330
随机网络Random network	150	108	7.596	0.010

指标 Index	网络规模 Network scale	网络关系数 Number of network relationships	平均路径长度 Average path length	平均聚类系数 Average clustering coefficient
现实网络Reality Network	150	108	2.583	0.330
随机网络Random network	150	108	7.596	0.010

主体 Subject	阶段 Stage	中心性 Centrality	总数 Total	最大值 Maximum	最小值 Minimum	中位数 Median	平均值 Mean	标准差 Standard deviation	变异系数 Coefficient of variation
机构	1991—2009	C_D	222	22	1	4	5.550	4.555	0.821
Institution		C_W	345	30	1	4	8.625	8.203	0.951
	2010—2022	C_D	5 404	112	1	5	7.676	9.181	1.196
		C_W	11 587	461	1	6	16.459	34.025	2.067
产业Industry	1991—2009	C_D	222	26	1	2	2.96	3.835	1.296
		C_W	345	46	1	2	4.6	6.673	1.451
	2010—2022	C_D	5 404	468	1	4.5	18.013	41.767	2.319
		C_W	11 587	1 572	1	8	38.623	123.206	3.190

主体 Subject	阶段 Stage	中心性 Centrality	总数 Total	最大值 Maximum	最小值 Minimum	中位数 Median	平均值 Mean	标准差 Standard deviation	变异系数 Coefficient of variation
机构	1991—2009	C_D	222	22	1	4	5.550	4.555	0.821
Institution		C_W	345	30	1	4	8.625	8.203	0.951
	2010—2022	C_D	5 404	112	1	5	7.676	9.181	1.196
		C_W	11 587	461	1	6	16.459	34.025	2.067
产业Industry	1991—2009	C_D	222	26	1	2	2.96	3.835	1.296
		C_W	345	46	1	2	4.6	6.673	1.451
	2010—2022	C_D	5 404	468	1	4.5	18.013	41.767	2.319
		C_W	11 587	1 572	1	8	38.623	123.206	3.190

上游Upstream		下游Downstream
主行业 Main industry	比重 Ratio/%	主行业 Main industry	细分行业 Sub-industry	比重 Ratio/%
专用设备修理 Repair of special equipment(C4330)	5.68	农副食品加工业 Agricultural and sideline food processing industry(C13)	谷物磨制Grain milling (C1311、C1312、C1313、C1314、C1319)	12.16
			植物油加工Vegetable oil processing(C1331、C1332)	3.24
			肉制品与副产品加工 Processing of meat products and by-products(C1353)	12.43
			水产品加工Aquatic product processing(C1363)	1.62
			淀粉与豆制品制造 Manufacture of starch and soy products(C1391)	1.35
		食品制造业 Food manufacturing industry(C14)	肉、禽类罐头制造 Manufacture of canned meat and poultry(C1451)	7.03
			营养食品制造Manufacture of nutritious foods(C1491)	6.76
		石油、煤炭及其他燃料加工业 Petroleum, coal and other fuel processing industries (C25)	生物质液体燃料加工 Biomass liquid fuel processing(C2541)	1.35
		化学原料和化学制品制造业 Manufacturing industry of chemical raw materials and chemical products (C26)	香料、香精制造 Manufacture of spices and flavors(C2684)	1.35
		医药制造业 Pharmaceutical manufacturing industry (C27)	中药饮片加工 Processing of traditional Chinese medicine decoction pieces(C2730)	5.68
			中成药生产 Production of proprietary Chinese medicines(C2740)	4.05
			兽用药品制造Manufacture of veterinary drugs(C2750)	2.97
		橡胶和塑料制品业 Rubber and plastic products industry(C29)	塑料包装箱与容器制造 Manufacture of plastic boxes and containers(C2976)	1.35
		非金属矿物制造业 Non-metallic mineral manufacturing industry (C30)	玻璃包装容器与材料制造 Manufacture of glass packaging containers and materials(C3055)	1.35
		金属制品业 Metal products industry(C33)	金属包装容器与材料制造 Manufacture of metal packaging containers and materials(C3333)	1.35
			搪瓷日用品与其他制品制造 Manufacture of enamel daily necessities and other products(C3379)	1.35
		通用设备制造业 General equipment manufacturing industry (C35)	气液体分离与纯净设备制造 Manufacture of gas-liquid separation and purification equipment (C3463)	1.35

Spatio-temporal evolution characteristics of scientific and technological innovation of Zanthoxylum bungeanum industry in Sichuan Province of China

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市(州) City and prefecture	专利数量Number of patents
市(州) City and prefecture	1991—2009	2010—2022	合计Total
成都Chengdu	136	1 514	1 650
雅安Ya’an	14	189	203
绵阳Mianyang	13	153	166
眉山Meishan	9	148	157
宜宾Yibin	4	161	165
凉山Liangshan	5	101	106
自贡Zigong	12	99	111
德阳Deyang	16	84	100
达州Dazhou	2	98	100
南充Nanchong	11	86	97
遂宁Suining	7	83	90
泸州Luzhou	4	82	86
巴中Bazhong	1	47	48
资阳Ziyang	3	60	63
广安Guang’an	2	53	55
攀枝花Panzhihua	4	48	52
广元Guangyuan	6	33	39
乐山Leshan	6	33	39
内江Neijaing	6	31	37
阿坝Aba	2	30	32
甘孜Ganzi	1	14	15

年份 Year	空间权重矩阵Spatial weight matrix
年份 Year	W₁	W₂	W₃
2010	-0.017	0.050^***	0.336^***
2011	0.026	0.042^***	0.085
2012	-0.019	0.047^***	0.053
2013	0.016	0.100^***	0.132^*
2014	-0.026	0.070^***	0.239^***
2015	0.011	0.054^***	0.195^***
2016	0.013	0.085^***	0.291^***
2017	-0.023	0.080^***	0.299^***
2018	0.034	0.069^***	0.230^***
2019	0.016	0.061^***	0.237^***
2020	-0.026	0.059^***	0.125^*
2021	-0.019	0.089^***	0.287^***
2022	0.008	0.057^***	0.316^***

经济区 Economic Zone	市(州) City and prefecture	2010				2015				2022
经济区 Economic Zone	市(州) City and prefecture	H-H	H-L	L-L	L-H	H-H	H-L	L-L	L-H	H-H	H-L	L-L	L-H
成都平原经济区	成都Chengdu	13	5	1	1	14	4		2	12	6	1	1
Chengdu Plain	德阳Deyang	4		2		3	1		2	3	1	2
Economic Zone	绵阳Mianyang	5	3	1		5	3		1	4	4		1
	眉山Meishan	2	1	3		1	2	1	2	2	1	2	1
	雅安Ya’an	2		6		1	1	4	2	1	1	4	2
	资阳Ziyang	1	2			2	1			2	1
	乐山Leshan	2		9		1	1	7	2	1	1	9
	遂宁Suining	2	1	1	1	2	1	1	1	1	2	1	1
川南经济区	宜宾Yibin	5		5		4	1	5		3	2	5
Southern Sichuan	泸州Luzhou	2		5			2	2	3	1	1	4	1
Economic Zone	内江Neijaing		2	2	1	2		1	2		2	2	1
	自贡Zigong	2	2	2		1	3		2	4		2
川东北经济区	广元Guangyuan			7				4	3			4	3
Northeastern Sichuan	达州Dazhou	6		1		2	4	1		4	2		1
Economic Zone	南充Nanchong	3	1	4	1	1	3	2	3		4	2	3
	巴中Bazhong	2		3		1	1	1	2	1	1	2	1
	广安Guang’an	3		3		3		1	2	2	1	2	1
攀西经济区	攀枝花Panzhihua	2		3		2		3		2		2	1
Panxi Economic Zone	凉山Liangshan	3		14		2	1	14		1	2	12	2
川西北经济区	阿坝Aba			10	3			11	2			11	2
Northwestern Sichuan	甘孜Ganzi			17	4			14	4			14	4
Economic Zone
合计Total		59	17	99	8	47	29	72	35	44	32	81	26

市(州) City and prefecture	均值Mean			中位数Median
市(州) City and prefecture	1991—2009	2010—2022	趋势Trend	1991—2009	2010—2022	趋势Trend
阿坝Aba	7.50	4.47	↓	7.50	4.00	↓
巴中Bazhong	4.00	5.00	↑	4.00	4.00	→
成都Chengdu	5.64	5.29	↓	5.00	5.00	→
达州Dazhou	7.00	5.29	↓	7.00	5.00	↓
德阳Deyang	5.25	5.01	↓	5.00	4.00	↓
甘孜Ganzi	5.00	3.36	↓	5.00	3.50	↓
广安Guang’an	7.00	5.28	↓	7.00	5.00	↓
广元Guangyuan	6.83	3.85	↓	6.50	4.00	↓
乐山Leshan	7.00	4.58	↓	7.00	4.00	↓
凉山Liangshan	6.20	5.68	↓	7.00	5.00	↓
泸州Luzhou	5.25	3.73	↓	6.00	4.00	↓
眉山Meishan	6.56	6.16	↓	6.00	6.00	→
绵阳Mianyang	7.23	5.50	↓	7.00	5.00	↓
南充Nanchong	5.36	5.02	↓	5.00	5.00	→
内江Neijaing	5.33	4.58	↓	5.00	5.00	→
攀枝花Panzhihua	4.50	4.52	↓	4.50	4.00	↓
遂宁Suining	6.29	5.57	↓	5.00	5.00	→
雅安Ya’an	4.36	6.03	↑	4.00	7.00	↑
宜宾Yibin	4.25	5.02	↑	4.50	4.00	↓
资阳Ziyang	6.00	5.35	↓	6.00	5.00	↓
自贡Zigong	5.42	4.65	↓	6.00	4.00	↓
四川省	5.81	5.25	↓	5.00	5.00	→

市(州) City and prefecture	均值Mean			中位数Median
市(州) City and prefecture	1991—2009	2010—2022	趋势Trend	1991—2009	2010—2022	趋势Trend
阿坝Aba	7.50	4.47	↓	7.50	4.00	↓
巴中Bazhong	4.00	5.00	↑	4.00	4.00	→
成都Chengdu	5.64	5.29	↓	5.00	5.00	→
达州Dazhou	7.00	5.29	↓	7.00	5.00	↓
德阳Deyang	5.25	5.01	↓	5.00	4.00	↓
甘孜Ganzi	5.00	3.36	↓	5.00	3.50	↓
广安Guang’an	7.00	5.28	↓	7.00	5.00	↓
广元Guangyuan	6.83	3.85	↓	6.50	4.00	↓
乐山Leshan	7.00	4.58	↓	7.00	4.00	↓
凉山Liangshan	6.20	5.68	↓	7.00	5.00	↓
泸州Luzhou	5.25	3.73	↓	6.00	4.00	↓
眉山Meishan	6.56	6.16	↓	6.00	6.00	→
绵阳Mianyang	7.23	5.50	↓	7.00	5.00	↓
南充Nanchong	5.36	5.02	↓	5.00	5.00	→
内江Neijaing	5.33	4.58	↓	5.00	5.00	→
攀枝花Panzhihua	4.50	4.52	↓	4.50	4.00	↓
遂宁Suining	6.29	5.57	↓	5.00	5.00	→
雅安Ya’an	4.36	6.03	↑	4.00	7.00	↑
宜宾Yibin	4.25	5.02	↑	4.50	4.00	↓
资阳Ziyang	6.00	5.35	↓	6.00	5.00	↓
自贡Zigong	5.42	4.65	↓	6.00	4.00	↓
四川省	5.81	5.25	↓	5.00	5.00	→